svn commit: r189742 - projects/stress2/misc

[Peter Holm]

Author: pho
Date: Thu Mar 12 14:36:34 2009
New Revision: 189742
URL: http://svn.freebsd.org/changeset/base/189742

Log:
  Added test of tmpfs with parallel mount and umount.

Added:
  projects/stress2/misc/tmpfs2.sh   (contents, props changed)

Added: projects/stress2/misc/tmpfs2.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ projects/stress2/misc/tmpfs2.sh	Thu Mar 12 14:36:34 2009	(r189742)
@@ -0,0 +1,78 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2009 Peter Holm <pho at FreeBSD.org>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $Id: crossmp.sh,v 1.2 2008/02/25 16:31:43 pho Exp $
+#
+
+# panic: vfs_mount_destroy: nonzero writeopcount, seen.
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+mounts=15		# Number of parallel scripts
+mdstart=$MDSTART	# Use md unit numbers from this point
+D=$DISKIMAGE
+
+if [ $# -eq 0 ]; then
+	for i in `jot $mounts`; do
+		m=$(( i + mdstart - 1 ))
+		[ ! -d ${mntpoint}$m ] && mkdir ${mntpoint}$m
+		mount | grep "$mntpoint" | grep -q md$m && umount ${mntpoint}$m
+	done
+
+	# start the parallel tests
+	for i in `jot $mounts`; do
+		m=$(( i + mdstart - 1 ))
+		./$0 $m &
+		./$0 find &
+	done
+
+	for i in `jot $mounts`; do
+		wait; wait
+	done
+
+else
+	if [ $1 = find ]; then
+		for i in `jot 1024`; do
+			find ${mntpoint}* -type f > /dev/null 2>&1
+		done
+	else
+
+		# The test: Parallel mount and unmounts
+		for i in `jot 1024`; do
+			m=$1
+			opt=`[ $(( m % 2 )) -eq 0 ] && echo -f`
+			mount -t tmpfs tmpfs ${mntpoint}$m
+			cp -r /usr/include/machine/a* ${mntpoint}$m
+			while mount | grep -qw $mntpoint$m; do
+				opt=$([ $((`date '+%s'` % 2)) -eq 0 ] && echo "-f")
+				umount $opt ${mntpoint}$m > /dev/null 2>&1
+			done
+		done
+	fi
+fi